Path: utzoo!censor!geac!torsqnt!lethe!yunexus!ists!helios.physics.utoronto.ca!news-server.csri.toronto.edu!cs.utexas.edu!samsung!uunet!pcserver2!ddsw1!zane
From: zane@ddsw1.MCS.COM (Sameer Parekh)
Newsgroups: comp.sys.apple2
Subject: Re: High-pitced noise from monitor
Message-ID: <1991Feb27.030420.28988@ddsw1.MCS.COM>
Date: 27 Feb 91 03:04:20 GMT
References: <44506@ut-emx.uucp> <1991Feb23.024425.16264@hoss.unl.edu>
Organization: ddsw1.MCS.COM Contributor, Wheeling, IL
Lines: 21

In article <1991Feb23.024425.16264@hoss.unl.edu> greg@hoss.unl.edu (Lig Lury Jr.) writes:
>
>On a similar subject, anyone know the cause of high pitches coming from
>a IIgs, becoming lower in pitch and more noticeable when a menu is pulled
>down?  I think it is coming from the built-in speaker, but it might be
>from the monitor, but it is strange that it (apparently) reduces in pitch
>the futher down the mouse is dragged down the menu.  It is a non-Woz
>upgraded to ROM 01.
>
	That happens to me too.  I don't think it is the speaker NOR
the monitor. . .I was reading in _Hackers_ about that computer that started
with an A which, when the processor executed certain instructions, it emitted
a certain tone.  Some hacker hacked up a program to play music.

	Once when I wanted to convert some SHR pics to GIFs with SHRConvert,
it was taking a long time, so I turned it on, read a book, and when I heard the
pitch change I knew it was done.


-- 
zane@ddsw1.MCS.COM